diff options
| author | Tiger Yang <tiger.yang@oracle.com> | 2008-05-15 02:45:18 +0000 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-06-09 11:26:59 -0700 |
| commit | 2e11e376bf8c26498fb1e5678b533f44902bb530 (patch) | |
| tree | c75ccbc3da92ffd200c1bf51b2d72aaf543372a7 /fs | |
| parent | e594f136b69ca9409470f678824a7f1e3ef37e41 (diff) | |
ext3/4: fix uninitialized bs in ext3/4_xattr_set_handle()
commit 7e01c8e5420b6c7f9d85d34c15d8c7a15c9fc720 upstream
This fix the uninitialized bs when we try to replace a xattr entry in
ibody with the new value which require more than free space.
This situation only happens we format ext3/4 with inode size more than 128 and
we have put xattr entries both in ibody and block. The consequences about
this bug is we will lost the xattr block which pointed by i_file_acl with all
xattr entires in it. We will alloc a new xattr block and put that large value
entry in it. The old xattr block will become orphan block.
Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext3/xattr.c | 5 | ||||
| -rw-r--r-- | fs/ext4/xattr.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index 42856541e9a..84119afe17a 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c @@ -1000,6 +1000,11 @@ ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, i.value = NULL; error = ext3_xattr_block_set(handle, inode, &i, &bs); } else if (error == -ENOSPC) { + if (EXT3_I(inode)->i_file_acl && !bs.s.base) { + error = ext3_xattr_block_find(inode, &i, &bs); + if (error) + goto cleanup; + } error = ext3_xattr_block_set(handle, inode, &i, &bs); if (error) goto cleanup; diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index e9054c1c7d9..70d856badab 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1011,6 +1011,11 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, i.value = NULL; error = ext4_xattr_block_set(handle, inode, &i, &bs); } else if (error == -ENOSPC) { + if (EXT4_I(inode)->i_file_acl && !bs.s.base) { + error = ext4_xattr_block_find(inode, &i, &bs); + if (error) + goto cleanup; + } error = ext4_xattr_block_set(handle, inode, &i, &bs); if (error) goto cleanup; |